<!DOCTYPE html>
<html style="height:100%; padding:0; margin:0">
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
</head>
<body style="text-align: center; height:100%; padding:0; margin:0">
  <div style=" width:100%; height:100%; background:url(welcome.jpg) no-repeat; background-size:100%"></div>

</body>
</html>